Product Version = NetBeans IDE 7.1 Beta (Build 201109252201)
Operating System = Windows XP version 5.1 running on x86
Java; VM; Vendor = 1.7.0_01
Runtime = Java HotSpot(TM) Client VM 21.1-b02
Also no JavaFX css support ?
I assume you are talking about deployed application not containing the fresh version of css file. If Deploy on Save is enabled the project should be redeployed automatically. If disabled you need to build and deploy manually.
Please reopen and elaborate the problem description if you mean something different. From what you've written so far it is not clear what is your problem.